A class of cascaded Bitfilter for generating pseudonoise sequences

For generating pseudonoise (PN)-sequences using relatively simple circuits, this paper presents a class of cascaded Bitfilter for generating PN-sequences. The Bitfilter is cascaded with two Bitfilters of different lengths, and the length of the generated PN-sequences is the product of lengths of two m-sequences generated by the two Bitfilters, respectively. The design example is also presented in the paper. The result of design example has shown that the cascaded Bitfilter can generate PN-sequences whose length is the product of lengths of the two m-sequences, and that this class of Bitfilter is effective and useful in the design of PN-sequences.